Ice-velocipede.



No. 674,954. Patented May 28, mm.

A. W. BLOM 81. A. F. NOBDOUI ST. ICE VELDGIPEDE.

(Applicatipn filed Oct. 5, 1900.3

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.AXEL WILHELM BLOM AND ANDERS FREDRIK NOHDQUIST, OF NE\V YORK, N. Y.

ICE-VELOCIPEDE.

SPECIFICATION formingpart of Letters Patent No. 674,954, dated May 28, 1901.

Application filed October 5. 1900- Serial No. 82.109. (No model.)

To (LZZ whom it may concern.-

Be it known that we, AXEL l/VILHELM BLOM and ANDERS FREDRIK NoRDoUIsT, subjects of the King of Sweden and Norway, and residents of New York city, county and State of New York, have invented certain new and useful Improvements in Ice-Velocipedes, of-

which the following is a specification.

The object of our invention is to provide an improved vehicle for traveling on ice by manual propulsion similarly to traveling on land by means of bicycles; and it consists of the improvements in the construction of such vehicles hereinafter described, reference being made to the accompanying drawings, in which- Figure 1 is a side elevation of our improved vehicle with a part in section. Fig. 2 is a plan view, partly in horizontal section on line 2 2 of Fig. 1. Fig. 3 is a transverse section of one of the runners, showing the grooved bearing edge which it is preferred to employ to prevent lateral slip,particularly when turning, and wabbling.

l/Ve make a frame structure comprising a front upright tube a,rearwardly inclined,rear upright post 6, forwardly inclined, and upper and lower horizontal connecting-bars a and d, with a steering-post e, fitted in the front tube a, having handles f attached to the upper end and at its lower end mounted on a skaterunner g. Rear post 1) is also mounted on a skate-runner 72., said posts being jointed to the runners at '2: to allow the requisite vertical play of the runners. The bar 61 is for the most of its length divided in two parts, which are separated, as shown in Fig. 2, for space to locate the driving-wheel. mounted in the upper end of the hind post 5 as bicycle-saddles are usually mounted. This comprises the carrying part of the velocipede. For propelling it we provide a driving-wheel k, with radially-projecting driving-spurs Z to bite the ice, and we mount said wheel in the said space between the divided parts of bar d by means of a front fork m, jointed at n to the front post a, so as to have limited play in a vertical plane, and another fork 0, having its support on the rear end of upper bar 0, the wheel-axle 13 being carried in the extremities of the prongs of both of said forks, i

A saddle j is.

and fork 0 has telescopic connection with a socket q, forming the connection with bar 0, allowing it limited vertical play also to compensate for inequalities in the surface of the ice. The socket q contains a coiled compression spring s to maintain contact of the driving-wheel with the ice, and on the stem of the fork o a check-nut 2 is fitted to check the wheel by screwing up against the socket in case it may be desired to set the wheel positively. Behind the driving-wheel a sprocketwheel it, having pedal-cranks o, is mounted, and a smaller sprocket-wheel w is mounted on the axle p of the driving-wheel for impelling it by a chain 00. In this example the driving sprocket-wheel u is mounted in a diagonal frame-stay 1 connecting the hind post b and the lower horizontal frame-bar 61, said stay being preferably divided in two parts along its middle portion, as shown in Fig. 2, for space in which to mount the sprocketwheel; but this is not essential,for the sprocket-Wheel may be mounted on one side of a stay not so divided. The sprocket-wheel a may be mounted farther back on the hind post, if desired.

The spurs Z of the driving-wheel will in practice be detachably connected to the rim to facilitate renewal when broken or worn too blunt for use.

What we claim as our invention is- 1. The combination with the frame comprising the front rearwardly-inclined upright, rear forwardly-inclined upright, and upper and lower horizontal connecting-bars, said lower connecting-bar divided for the drivingwheel, of the steering-post in the front upright and provided with handles at its upper end and mounted on a skate-runner at its lower end, a skate-runner carrying the rear upright, the front fork connected to the front upright, rear fork supported at the rear upper part of the frame, driving spur-wheel having its axle mounted in the extremities of the prongs of both forks, driving sprocket-wheel having pedal-cranks, and mounted behind the driving-wheel sprocket-wheel on the driv ing-wheel axle, driving-chain, and the seat on the upper rear part of the frame.

2. The combination with the frame comprising the front rearwardly-inclined upright,

rear forwardly-inclined uprightjand upper and lower longitudinal connecting-bars, said lower connecting-bar divided for the drivingwheel, of the steering-post in the front upright and provided with handles at its upper end and mounted on a skate-runner at its lower end, a skate-runner carrying the rear upright, the front fork pivoted for vertical play to the front upright, rear fork supported at the rear upper part of the frame and having telescopic play controlled by a compression-spring, and also having the positivelysetting nut, driving spur-wheel having its 

